In order to increase your sales online, you must test your products and services in your niche. Experiment in the initial stage is important to know the response of your potential customers. Once you are confident that your product/service is what your customers really want, then begin with a website design and focus one short term goal and one long term goal as below:

Your short term goal to get leads: Start running paid campaigns with Google AdWords and Facebook Marketing. Setup your campaigns and budget and draw qualified traffic to your site that converts.

Your long term goal to get repeat customers and recommendations: Hire SEO Experts (Search Engine Optimization) that can improve your website ranking organically by optimizing your web content and social engagement through posts and videos.